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          <h1 class="post-title" itemprop="name headline">01-K8s集群搭建---系统初始化配置</h1>
        

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        <h2 id="1-架构说明"><a href="#1-架构说明" class="headerlink" title="1.架构说明:"></a>1.架构说明:</h2><p><img src="https://raw.githubusercontent.com/guomaoqiu/myblog_backup/master/uploads/2018/06/15278627011918.jpg" alt="">￼</p>
<h2 id="2-版本信息"><a href="#2-版本信息" class="headerlink" title="2.版本信息:"></a>2.版本信息:</h2><ul>
<li>系统版本CentOS7.x</li>
<li>Kubernets: v1.10</li>
<li>Etcd: v3.3.1</li>
<li>Docker: 18.03.1-ce</li>
<li>Flannel: v1.10</li>
<li>CNI-Plugins: v0.7.0 建议部署节点：最少三个节点，请配置好主机名解析（必备）</li>
</ul>
<h2 id="3-系统初始化-三台服务器分别执行即可，以node1为例"><a href="#3-系统初始化-三台服务器分别执行即可，以node1为例" class="headerlink" title="3.系统初始化(三台服务器分别执行即可，以node1为例):"></a>3.系统初始化(三台服务器分别执行即可，以node1为例):</h2><p>a. 主机名配置</p>
<pre><code>node1:
echo &quot;linux-node1.example.com&quot; &gt; /etc/hostname
</code></pre><p>b. 设置/etc/hosts保证主机名能够解析</p>
<pre><code>node1:
echo &quot;192.168.56.11 linux-node1 linux-node1.example.com&quot; &gt;&gt; /etc/hosts
</code></pre><p>c. 关闭SELinux及防火墙</p>
<pre><code>node1:
systemctl disable firewalld; systemctl stop firewalld 
sed -i &apos;s/SELINUX=enforcing/SELINUX=disabled/g&apos; /etc/selinux/config
</code></pre><p>d. 环境变量配置(后续k8s相关命令都会放到/opt/kubernetes/bin目录下)</p>
<pre><code>PATH=$PATH:$HOME/bin:/opt/kubernetes/bin
source ~/.bash_profile
</code></pre><h2 id="4-安装Docker"><a href="#4-安装Docker" class="headerlink" title="4.安装Docker"></a>4.安装Docker</h2><p>a：使用国内Docker源</p>
<pre><code>[root@linux-node1 ~]# cd /etc/yum.repos.d/
[root@linux-node1 yum.repos.d]# wget \
https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
</code></pre><p>b：Docker安装：</p>
<pre><code>[root@linux-node1 ~]# yum install -y docker-ce
</code></pre><p>c：启动后台进程：</p>
<pre><code>[root@linux-node1 ~]# systemctl start docker
</code></pre><h2 id="5-准备部署目录"><a href="#5-准备部署目录" class="headerlink" title="5.准备部署目录"></a>5.准备部署目录</h2><pre><code>[root@linux-node1 ~]#  mkdir -p /opt/kubernetes/{cfg,bin,ssl,log}
# 目录结构, 所有文件均存放在/opt/kubernetes目录下：
[root@linux-node1 ~]# tree -L 1 /opt/kubernetes/
/opt/kubernetes/
├── bin   #二进制文件
├── cfg   #配置文件
├── log   #日志文件
└── ssl   #证书文件
</code></pre><h2 id="6-准备软件包"><a href="#6-准备软件包" class="headerlink" title="6.准备软件包"></a>6.准备软件包</h2><p>百度网盘下载地址：<br><a href="https://pan.baidu.com/s/1bQo7PEfKJAAhk4KzQgLrMQ" target="_blank" rel="noopener">https://pan.baidu.com/s/1bQo7PEfKJAAhk4KzQgLrMQ</a> 密码:gm3k</p>
<h2 id="7-解压软件包"><a href="#7-解压软件包" class="headerlink" title="7.解压软件包"></a>7.解压软件包</h2><pre><code>[root@linux-node1 ~]# cd /tmp/ &amp;&amp; unzip k8s-v1.10.1-manual.zip &amp;&amp; mv k8s-v1.10.1-manual/k8s-v1.10.1/* /usr/local/src/
[root@linux-node1 ~]# cd /usr/local/src
[root@linux-node1 ~]# tar zxf kubernetes.tar.gz 
[root@linux-node1 ~]# tar zxf kubernetes-server-linux-amd64.tar.gz 
[root@linux-node1 ~]# tar zxf kubernetes-client-linux-amd64.tar.gz
[root@linux-node1 ~]# tar zxf kubernetes-node-linux-amd64.tar.gz
</code></pre><h2 id="8-做好master节点跟其他node节点的ssh互信-便于搭建"><a href="#8-做好master节点跟其他node节点的ssh互信-便于搭建" class="headerlink" title="8.做好master节点跟其他node节点的ssh互信,便于搭建"></a>8.做好master节点跟其他node节点的ssh互信,便于搭建</h2><pre><code>[root@linux-node1 ~]# ssh-key -t rsa &quot;&quot;
......
......
......
[root@linux-node1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.56.11
[root@linux-node1 ~]# ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.56.12
</code></pre>
      
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